Calculate the durations and volatilities of securities A, B, and C. Their cash flows are shown below. The interest rate is 9%. (Do not round intermediate calculations. Round "Duration" to 4 decimal places and "Volatility" to 2 decimal places.) Period 1 Period 2 Period 3 Duration Volatility A 95 95 150 1.6919 years 1.54 B 75 75 230 2.3515 years 2.16 C 65 65 220 2.3879 years 2.19